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Preparation and application of efficient deodorant carbon-based adsorbent

An adsorbent and activated carbon adsorption technology, which is applied in the preparation of sulfide adsorbents and the field of mercaptan removal, can solve the problems of unsatisfactory deodorization effect, etc., and achieve the effects of strong adsorption capacity, simple preparation method and good adsorption performance.

Inactive Publication Date: 2012-11-14
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Commonly used adsorbent materials cannot achieve satisfactory deodorizing effect due to various defects

Method used

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  • Preparation and application of efficient deodorant carbon-based adsorbent
  • Preparation and application of efficient deodorant carbon-based adsorbent
  • Preparation and application of efficient deodorant carbon-based adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 0.527 g of ferric nitrate nonahydrate and place it in a beaker, add 10.2 g of deionized water and stir to dissolve it. Weigh 6 g of coconut shell activated carbon and place it in a magnetic crucible, and add the prepared impregnating solution into the crucible drop by drop until all the impregnating solution is fully impregnated into the activated carbon. At room temperature, after adsorption and impregnation for 4 hours, it was placed in a forced air drying oven and dried overnight at 110 °C. That is, the surface loaded with Fe(NO 3 ) 3 Modified coconut shell activated carbon adsorbent.

Embodiment 2

[0030] Weigh 0.503 g of nickel nitrate hexahydrate and place it in a beaker, add 10.2 g of deionized water and stir to dissolve it. Weigh 6 g of coconut shell activated carbon and place it in a magnetic crucible, and add the prepared impregnating solution into the crucible drop by drop until all the impregnating solution is fully impregnated into the activated carbon. At room temperature, after adsorption and impregnation for 4 hours, it was placed in a forced air drying oven and dried overnight at 110 °C. That is, the surface is loaded with Ni(NO 3 ) 2 Modified coconut shell activated carbon adsorbent.

[0031] In the present invention, the carbon-based adsorbent of the present invention described in the application examples, comparative example 1, and comparative example 2 is placed in an adsorption bed of an adsorption separation evaluation system. Under normal pressure, the mixed gas of nitrogen ethyl mercaptan and nitrogen ethyl sulfide was introduced respectively to m...

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Abstract

The invention discloses an efficient refuse landfill odor adsorbent and preparation and application thereof. According to the odor adsorbent, iron ions are loaded on the surface of active carbon. According to the preparation method, cocoanut active carbon is taken as a carrier, and ferric nitrate is taken as a precursor; and the preparation method comprises the steps of loading Fe(NO3)3 on the surface of the active carbon by an immersion method, and drying an obtained sample for removing water at a temperature of 100-120 DEG C to obtain the modified active carbon adsorbent. The modified active carbon adsorbent has a good effect when being used for removing malodorous components such as thiol and thioether in odor, is simple to prepare and easy in control of process and has a high industrial application value.

Description

technical field [0001] The invention relates to a novel activated carbon deodorizing adsorbent and its preparation method and application, in particular to an adsorbent for removing mercaptans and sulfides from landfill odors or other odors containing mercaptans and sulfides method of preparation. Background technique [0002] With the continuous development of the urbanization process, the disposal of urban waste has become an urgent problem to be solved. At present, most countries generally adopt the method of sanitary landfill to deal with. In this process, the sorting, crushing, conveying, dehydration and other units will generate a lot of odor. The odor components mainly contain mercaptans, sulfides, chlorides, etc., which will cause air pollution. Therefore, the development of effective deodorization technology can reduce the occurrence of secondary pollution and improve the working environment of garbage disposal projects. [0003] At present, my country's landfill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01D53/02
Inventor 罗仕忠胡像锋李通倪宏志黄亚军
Owner SICHUAN UNIV
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